Who could Taylor be talking to in this new single "Back To December"? Maybe Taylor Lautner...

This song is the fourth single from her highly anticipated third album, 'Speak Now,' which comes out Oct. 25. You can see in the picture that for this single she straightened her hair and looks completely different.

Unlike previous singles 'Mine,' 'Innocent',  'Back to December' is about asking for forgiveness.

In the new song, Swift is letting an ex know she is sorry. The chorus goes: "So this is me swallowing my pride/ Standing in front of you saying 'I'm sorry' for that night/ And I go back to December all the time/ It turns out freedom ain't nothing/ Missing you, wishing I'd realized what I had when you were mine/ I'd go back to December, turn around and make it all right/ I go back to December all time."

Taylor said, "It addresses a first for me in that I've never apologized in song. The person I wrote this song about deserves this. This is about a person who was incredible to me, just perfect to me in a relationship, and I was really careless with him."

Who could this song be about? We can't be sure, but bets are on Taylor L!